Robust weighted-mean approach for the evaluation of ground improvement columns using surface wave analysis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Standard

Robust weighted-mean approach for the evaluation of ground improvement columns using surface wave analysis. / Madun, A.; Jefferson, I.; Foo, K. Y.; Atkins, P. R.; Chapman, D. N.; Culshaw, M.

Near Surface 2010 - 16th European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists and Engineers, EAGE, 2010.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Harvard

Madun, A, Jefferson, I, Foo, KY, Atkins, PR, Chapman, DN & Culshaw, M 2010, Robust weighted-mean approach for the evaluation of ground improvement columns using surface wave analysis. in Near Surface 2010 - 16th European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists and Engineers, EAGE, 16th European Meeting of Environmental and Engineering Geophysics, Near Surface 2010, Zurich, Switzerland, 6/09/10.

APA

Madun, A., Jefferson, I., Foo, K. Y., Atkins, P. R., Chapman, D. N., & Culshaw, M. (2010). Robust weighted-mean approach for the evaluation of ground improvement columns using surface wave analysis. In Near Surface 2010 - 16th European Meeting of Environmental and Engineering Geophysics European Association of Geoscientists and Engineers, EAGE.

Vancouver

Madun A, Jefferson I, Foo KY, Atkins PR, Chapman DN, Culshaw M. Robust weighted-mean approach for the evaluation of ground improvement columns using surface wave analysis. In Near Surface 2010 - 16th European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists and Engineers, EAGE. 2010

Author

Madun, A. ; Jefferson, I. ; Foo, K. Y. ; Atkins, P. R. ; Chapman, D. N. ; Culshaw, M. / Robust weighted-mean approach for the evaluation of ground improvement columns using surface wave analysis. Near Surface 2010 - 16th European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists and Engineers, EAGE, 2010.

Bibtex

@inproceedings{ed4c1ce533c7463ca1135b8b9772b5ce,
title = "Robust weighted-mean approach for the evaluation of ground improvement columns using surface wave analysis",
abstract = "This paper demonstrates the application of surface wave analysis specifically for the evaluation of ground improvement columns, and considers the susceptibility of phase measurements to noise associated with this technique. This is addressed by introducing a robust approach of calculating the phase velocity based upon a weighted-mean approach that uses the signal-to-noise ratio SNR of the signal as a variable cost function to obtain an optimal phase velocity estimation. Experimental data was collected from a laboratory scale setup of a 0.1 m diameter × 0.15 m depth gravelly-sand column installed within a 0.6 m × 0.3 m × 0.3 m block of homogenous kaolinite-clay. Results from the measurements indicated Rayleighwave phase velocities of 59 m/s and 110 m/s for the clay and column respectively. The weighted-mean approach demonstrated consistently more accurate phase estimation as compared to the case of a rigid threshold approach.",
author = "A. Madun and I. Jefferson and Foo, {K. Y.} and Atkins, {P. R.} and Chapman, {D. N.} and M. Culshaw",
year = "2010",
language = "English",
booktitle = "Near Surface 2010 - 16th European Meeting of Environmental and Engineering Geophysics",
publisher = "European Association of Geoscientists and Engineers, EAGE",
note = "16th European Meeting of Environmental and Engineering Geophysics, Near Surface 2010 ; Conference date: 06-09-2010 Through 08-09-2010",

}

RIS

TY - GEN

T1 - Robust weighted-mean approach for the evaluation of ground improvement columns using surface wave analysis

AU - Madun, A.

AU - Jefferson, I.

AU - Foo, K. Y.

AU - Atkins, P. R.

AU - Chapman, D. N.

AU - Culshaw, M.

PY - 2010

Y1 - 2010

N2 - This paper demonstrates the application of surface wave analysis specifically for the evaluation of ground improvement columns, and considers the susceptibility of phase measurements to noise associated with this technique. This is addressed by introducing a robust approach of calculating the phase velocity based upon a weighted-mean approach that uses the signal-to-noise ratio SNR of the signal as a variable cost function to obtain an optimal phase velocity estimation. Experimental data was collected from a laboratory scale setup of a 0.1 m diameter × 0.15 m depth gravelly-sand column installed within a 0.6 m × 0.3 m × 0.3 m block of homogenous kaolinite-clay. Results from the measurements indicated Rayleighwave phase velocities of 59 m/s and 110 m/s for the clay and column respectively. The weighted-mean approach demonstrated consistently more accurate phase estimation as compared to the case of a rigid threshold approach.

AB - This paper demonstrates the application of surface wave analysis specifically for the evaluation of ground improvement columns, and considers the susceptibility of phase measurements to noise associated with this technique. This is addressed by introducing a robust approach of calculating the phase velocity based upon a weighted-mean approach that uses the signal-to-noise ratio SNR of the signal as a variable cost function to obtain an optimal phase velocity estimation. Experimental data was collected from a laboratory scale setup of a 0.1 m diameter × 0.15 m depth gravelly-sand column installed within a 0.6 m × 0.3 m × 0.3 m block of homogenous kaolinite-clay. Results from the measurements indicated Rayleighwave phase velocities of 59 m/s and 110 m/s for the clay and column respectively. The weighted-mean approach demonstrated consistently more accurate phase estimation as compared to the case of a rigid threshold approach.

UR - http://www.scopus.com/inward/record.url?scp=84896374027&partnerID=8YFLogxK

M3 - Conference contribution

BT - Near Surface 2010 - 16th European Meeting of Environmental and Engineering Geophysics

PB - European Association of Geoscientists and Engineers, EAGE

T2 - 16th European Meeting of Environmental and Engineering Geophysics, Near Surface 2010

Y2 - 6 September 2010 through 8 September 2010

ER -